The ads, which Warren’s campaign placed on the platform Friday, promoted the Massachusetts senator’s plan to break up what she believes is Facebook and Amazon’s monopoly. Nearly a dozen other campaign ads addressing her proposal to slam tech companies were not affected.

“Three companies have vast power over our economy and our democracy. Facebook, Amazon, and Google,”reads one of the ads. “We all use them. But in their rise to power, they’ve bulldozed competition, used our private information for profit, and tilted the playing field in their favor.”

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She announced her bid to run against President Donald Trump in February.Forcing Google to abandon mergers with the likes of DoubleClick would seriously harm its ability to pull in revenue. Separating the company from its ad business would make Google ads much less valuable. Warren’s proposal would also prevent Amazon from selling its own products through its platform.

Warren has not yet responded to The Daily Caller News Foundation’s request for comment about Facebook’s decision to ding the senator’s ads.

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